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PhysicsJEE Main 6 Apr 2026, Shift 1·Q13·MCQ·Easy–moderate

Electric Charges and Fields · Electric field

A thin half ring of radius 35 cm is uniformly charged with a total charge of Q coulomb. If the magnitude of the electric field at centre of the half ring is 100 V/m, then the value of Q is nC. (ϵ0=8.85×10−12 C2/Nm2\epsilon_0 = 8.85\times10^{-12}\ \mathrm{C^2/Nm^2} and π=3.14\pi = 3.14)
  1. (1)2.14
  2. (2)2.44
  3. (3)3.25
  4. (4)0.7

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